Split pipe-collar.



F. BIEDENMEISTER.

SPLIT PIPE CDLLAR.

APPucATloN FILED MAR.7.1911.

Patented Mar. 26, 1918.

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FREDERICK BIEDENMEISTER, 0F NEW YORK, N. Y., .ASSIGNOR TO GOOD MANUFAC- TUBING COMPANY, OF NEW YORK, N. Y., A CORPORATION OE NEW YORK.

SPLIT PIPE-COLLAR.

Application led March 7, 1917.

To all whom t may concern:

Be it known that I, FREDERICK BIEDEN- MEISTER, a citizen of the United States, residing at Bronx, New York city, in the county of Bronx and State of New York, have invented a new and useful Improvement in' Split Pipe-Collars, of which the following is a specification.

This invention relates to those collars which are formed of two similar semi-annular plates that are designed to be tted to gether about steam, water and the like pipes, and against the surface of a wall, floor or ceiling for covering the pipe opening through the wall, floor or ceiling and trimming the ipe.

The object of the invention is to provide a light and ornamental plate that can .be cheaply manufactured in large quantities and easily manipulated by any one for securely fitting any two plates together about a pipe or removing them from a pipe.

The complete collar consists of two eX- actly similar semi-annular plates stamped from sheet metal, each plate being designed so that it can be rapidly produced from a single piece of metal, and any two of the semi-annular plates can be instantly iitted together to form a complete collar about the pipe. To attain this result each plate has at one abutting edge an integral ear that is slotted and folded back, and each plate at the other abutting edge has an integral tongue, the integral tongue on one plate being designed to enter and engage the walls about the slot in the integral folded ear on the other plate when two plates are fitted together.

Figure l of the accompanying drawings vshows a front view of a collar which embodies the invention. Fig. 2 shows a back view of the collar, with theV plates iitted together and one folded ear cut away. Fig. 3 shows a back view with the plates separated. Fig. 4l is a section taken on plane of dotted line l-t on Fig. 2 through the abutting edges showing the manner of engaging the tongues and ears for fastening the plates together.

The semi-annular plates 1 and 2 which when fitted together make up the complete collar are the same shape and construction. Projecting backward from the flanged circular inner edge 3 of each plate are the usual spring fingers 4t provided. for grasping the Patented Mar. 26, 191e.

Serial No. 153,002.

pipe and retaining the collar in position when in use. When each semi-aniiular plate 1s stamped to shape an integral ear 5 provided with a slot 6 is formed at one straight abutting edge. This ear is folded over on the plane of the slot so that it lies inside of the plate adjacent to the abutting edge, the slot forming an opening for receiving the tongue on the complementary plate when put to use. Also when the semiannu lar plate is stamped an integral tongue 7 is formed on the other straight abutting edge. This tongue is slightly inset from the plane of the plate and is desirably notched or slitted, as at 8, so that a portion of it will be somewhat resilient and may be bent out of the plane of the rest of the tongue. The tongue is of such size and shape that it will pass through the slot in the folded ear of the complementary plate with which it is to be used. The tongues are so located that when the abutting edges of the plates are first put together with the tongue on one plate projecting into the slot in the bent portion of the ear on the other plate the two plates are not concentric, but owing to the notches in the tongues the plates can be slid edgewise so as to make them concentric. When two plates are put together with the tongues passed through the slots, and the two plates are given a slight edgewise movement with relation to each other, one edge wall of the slot in the ear on each plate will pass into the notch in the edge of each tongue so that the meeting edges of the two plates cannot be separated by a direct pull, but can only be sepa rated after first moving the two plates slightly edgewise and removing the edge walls of the slots from the notches in the tongues,. This movement cannot accidentally take place when the collar is in use for the reason that the spring lingers as they grip the pipe tend to hold the two plates against edgewise movement, and furthermore, the slitted or resilient ends of the Itongues may be bent out of their normal plane in such manner that they bind between the back surfaces of the plates and the inner surfaces of the folded ears through which they pass. The bending of the tongues reduces the liability of the accidental unlocking of the plates, prevents rattling, and eliminates the necessity of making the parts to exact gage.

T he invention claimed is:

l. A pipe collar formed of two similar semi-annular sheet metal plates, each plate having an integral tongue extending forward from one abutting edge and an integral ear bent backward :troni the other abut ting edge with a slot through the bent portion of the ear, the tongue ot each plate being shaped to pass through the slot in the ear on the opposite plate and engage the walls thereof for holding the plates together.

2. A pipe collar formed of two similar semi-annular sheet nietal plates, each plate having an integral tongue extending forward from one abutting edge with a notch in the edge of the tongue close to the abutting edge of the plate, and each plate having an integral ear bent backward troni the other abutting edge with a slot through the bent portion oi the ear close to the abutting edge of the plate, the tongue on each plate being shaped to pass through the slot in the ear on the opposite plate and inove edgewise for engaging and disengaging the notches in the tongues with the bent walls of the ears at the ends ot the slots.

3. A pipe collar formed of two semi-annular sheet inetal plates, each plate having integral spring ingers projecting troni its circular inner edge, an integral tongue eX- tending forward troni one abutting edge with a notch in the edge of the tongue close to the abutting edge 01"' the plate, and an Copies of this patent may be obtained for integral ear bent backward from the other abutting edge with slot in the bent portion of the ear close to the abutting edge of the plate, the tongue on each plate being shaped to pass through the slot in the ear on the opposite plate and move edgewise for engaging and disengaging the notches in the tongues with the bent walls of the ears at the ends of the slots.

at. A pipe collar tornied of two plates, said plates having integral tongues extending forward troni abutting edges wit-h notches in the edges of the tongues close to the abutting edges, and having integral ears bent backward from abutting edges with slots through the bent portions of the ears close to the abutting edges, the tongues being shaped to pass through the slots in the ears and inove edgewise for engaging the notches in the tongues with the bent walls of the ears at the ends of the slots, for holding the plates together.

5. A semi-annular pipe collar plate formed from a single piece of metal with spring lingers projecting backwardly from its eircular inner edge, an integral tongue eXtending forward from one abutting edge with a `notch in the edge of the tongue close to said abutting edge, and an integral ear bent backward from the other abutting edge with a slot through the bent portion of the ear close to said abutting edge.

FREDERICK BIEDENMEISTER.

five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

